Abstract
In the context of advocating a green and low-carbon era, ocean energy, as a renewable strategic resource, is an important part of planning and building a new energy system. Triboelectric nanogenerator (TENG) arrays provide feasible and efficient routes for large-scale harvesting of ocean energy. In previous work, a spherical rolling-structured TENG with three-dimensional (3D) electrodes based on rolling motion of dielectric pellets was designed and fabricated for effectively harvesting low-frequency water wave energy. In this work, the external shape of the scalable rolling-structured TENG (SR-TENG) and internal filling amount of pellets were mainly optimized, achieving an average power density of 10.08 W·m−3 under regular triggering. In actual water waves, the SR-TENG can deliver a maximum peak power density of 80.29 W·m−3 and an average power density of 6.02 W·m−3, which are much greater than those of most water wave-driven TENGs. Finally, through a power management, an SR-TENG array with eight units was demonstrated to successfully power portable electronic devices for monitoring the marine environment. The SR-TENGs could promote the development and utilization of ocean blue energy, providing a new paradigm for realizing the carbon neutrality goal.
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Acknowledgements
The research was supported by the National Key R&D program of China (Nos. 2021YFA1201604 and 2021YFA1201601), the Beijing Nova Program (No. 20220484036), the Innovation Project of Ocean Science and Technology (No. 22-3-3-hygg-18-hy), and the Youth Innovation Promotion Association, CAS.
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Scalable rolling-structured triboelectric nanogenerator with high power density for water wave energy harvesting toward marine environmental monitoring
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Duan, Y., Xu, H., Liu, S. et al. Scalable rolling-structured triboelectric nanogenerator with high power density for water wave energy harvesting toward marine environmental monitoring. Nano Res. 16, 11646–11652 (2023). https://doi.org/10.1007/s12274-023-6035-x
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DOI: https://doi.org/10.1007/s12274-023-6035-x